Vertex AI vs Writesonic: Pricing Comparison 2026
Side-by-side pricing comparison of Vertex AI and Writesonic. See all plans, features, and costs at a glance.
Bottom line: Vertex AI starts at $2/mo, making it $77/mo cheaper than Writesonic ($79/mo). Neither offers a free plan.
Last updated: July 6, 2026
Vertex AI - Vertex AI starts at $77/mo lower ($2/mo vs $79/mo), offers 12 tiers vs 4.
Vertex AI vs Writesonic: Quick Pricing Facts
| Feature | Vertex AI | Writesonic |
|---|---|---|
| Starting Price | $2/mo | $79/mo |
| Number of Plans | 12 | 4 |
| Free Tier | No | No |
| Pricing Model | usage-based | freemium |
| Annual Discount | N/A | N/A |
Vertex AI is the more affordable option, starting at $2/mo compared to Writesonic's $79/mo. Both are AI & ML tools with 16 combined pricing plans and 0 features compared.
Vertex AI uses usage-based pricing while Writesonic uses freemium pricing, which may affect your total cost at scale.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your AI & ML needs.
| Pricing Plans |  Vertex AI Try free |  Writesonic Try free |
|---|---|---|
| Tier 1 | cached Custom pricing | STARTER $79/monthCheapest |
| Tier 2 | $14 per 1,000 search queries $14/monthCheapest | BASIC $199/month |
| Tier 3 | $14 per 1,000 queries $14/monthCheapest | GROWTH $399/month |
| Tier 4 | Gemini 2.0 Flash $2/monthCheapest | ENTERPRISE Custom pricing |
| Tier 5 | $45 per 1,000 grounded prompts $45/monthCheapest | - |
| Tier 6 | $25 per 1,000 grounded prompts $25/monthCheapest | - |
| Tier 7 | Gemini Flash Custom pricing | - |
| Tier 8 | $35 per 1,000 grounded prompts $35/monthCheapest | - |
| Tier 9 | Model Custom pricing | - |
| Tier 10 | Open Source Model Custom pricing | - |
| Tier 11 | Duration Custom pricing | - |
| Tier 12 | $10 per 1000 searches $10/monthCheapest | - |
← Swipe to compare plans →
Ready to get started? Try either tool free — no credit card required.
Frequently Asked Questions: Vertex AI vs Writesonic
Which is cheaper, Vertex AI or Writesonic?
How many pricing plans does Vertex AI have vs Writesonic?
Does Vertex AI or Writesonic offer custom enterprise pricing?
What pricing models do Vertex AI and Writesonic use?
How do Vertex AI and Writesonic compare for AI & ML?
Sources
- Vertex AI Official Pricing- Vendor pricing page
- Writesonic Official Pricing- Vendor pricing page
Related Articles
How Much Does ElevenLabs Cost in 2026? Complete Pricing Breakdown
ElevenLabs pricing 2026: Free (10K chars), Starter $5/mo, Creator $11/mo, Pro $99/mo, Scale $330/mo. Character limits, voice cloning tiers, API costs, and which plan fits your use case.
ChatGPT vs Claude Pricing in 2026: Which AI Assistant Is Worth Paying For?
ChatGPT Plus vs Claude Pro - both $20/month, but what you get differs significantly. This guide compares every tier, API costs per token, free tier limits, and which AI is worth paying for in 2026.
Best AI Tools Pricing Compared (2026)
AI tool pricing: ChatGPT ($20/mo), Claude ($20/mo), Jasper ($39-99/mo), Midjourney ($10-60/mo), Perplexity ($20/mo), Copy.ai ($49/mo). Pricing models and optimization.
Track Price Changes
Get notified when pricing changes for these tools.